logger.debug("Failed to update suggest index.", e);
                }
                exitCode.set(1);
            }
        }

        logger.info("Replacing new suggest index.");
        suggestHelper.suggester().switchIndex();

        logger.info("Removing old indices.");
        suggestHelper.suggester().removeDisableIndices();

        return exitCode.get();
    }

import org.codelibs.fess.suggest.analysis.SuggestAnalyzer;
import org.codelibs.fess.suggest.constants.FieldNames;
import org.codelibs.fess.suggest.converter.ReadingConverter;
import org.codelibs.fess.suggest.exception.SuggesterException;
import org.codelibs.fess.suggest.index.SuggestIndexer;
import org.codelibs.fess.suggest.normalizer.Normalizer;
import org.codelibs.fess.suggest.request.popularwords.PopularWordsRequestBuilder;

          e.preventDefault();
        }
        suggestor.selectlist("up");
      } else if (e.keyCode === KEY_CODES.DOWN) {
        if ($boxElement.css("display") === "none") {
          suggestor.suggest();
        } else {
          suggestor.selectlist("down");
        }
      } else if (e.keyCode === KEY_CODES.ENTER) {
        if (isFocusList) {
          suggestor.fixList();
        }
      }
    });

    <artifactId>fess-suggest</artifactId>
    <version>15.2.0-SNAPSHOT</version>
</dependency>
```

### Basic Usage

#### 1. Create Suggester Instance

```java
import org.codelibs.fess.suggest.Suggester;
import org.opensearch.client.Client;

// Initialize with your OpenSearch client
String suggestId = "my-suggest-index";
Suggester suggester = Suggester.builder().build(client, suggestId);
```

import org.codelibs.fess.suggest.Suggester;
import org.codelibs.fess.suggest.constants.FieldNames;
import org.codelibs.fess.suggest.entity.SuggestItem;
import org.codelibs.fess.suggest.exception.SuggestSettingsException;
import org.codelibs.fess.suggest.index.SuggestDeleteResponse;
import org.codelibs.fess.suggest.index.contents.document.ESSourceReader;
import org.codelibs.fess.suggest.settings.SuggestSettings;

**Index Lifecycle:**
```java
suggester.createIndexIfNothing();      // Initial setup
suggester.createNextIndex();            // Create new index
// ... indexing operations ...
suggester.switchIndex();                // Switch to new index
suggester.removeDisableIndices();       // Cleanup old indices
```

**Async Operations:**
```java
suggester.suggest()
    .setQuery("search")
    .execute()

        assertEquals(2, suggester.getDocumentWordsNum());
        assertEquals(1, suggester.getQueryWordsNum());

        suggester.indexer().deleteDocumentWords();
        suggester.refresh();
        assertEquals(1, suggester.getAllWordsNum());
        assertEquals(0, suggester.getDocumentWordsNum());
        assertEquals(1, suggester.getQueryWordsNum());
    }

    @Test

 */
package org.codelibs.fess.suggest;

import java.io.IOException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import org.codelibs.fess.suggest.analysis.SuggestAnalyzer;
import org.codelibs.fess.suggest.converter.ReadingConverter;
import org.codelibs.fess.suggest.exception.SuggesterException;
import org.codelibs.fess.suggest.normalizer.Normalizer;

Shinsuke Sugaya <******@****.***> 1524119770 +0900

 */
package org.codelibs.fess.suggest.request.popularwords;

import static org.codelibs.opensearch.runner.OpenSearchRunner.newConfigs;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;

import org.codelibs.fess.suggest.Suggester;
import org.codelibs.fess.suggest.constants.SuggestConstants;